I have a comsol 4 slot card reader
P: Vendor=07cc ProdID=0300 Rev= 0.05
S: Manufacturer= Ltd
S: Product=Winter Ver1.3
S: SerialNumber=058150594954
the CF slot is the only one that works with the ship kernel.
If I recompile with CONFIG_SCSI_MULTI_LUN=y
then the SD slot (at least) also works.
Is this similar?

Created attachment 101142[details]
dmesg for Comsol 4 slot usb reader with CF and SD cards in
dmesg attached. This is 2.6.7-rc1-mm1 (root@wattle) (gcc version 3.3.3 20040412
on fc2, with CONFIG_SCSI_MULTI_LUN=y
(for UDF reasons) but usb card reader behaviour seemed the same on 2.6.5